Forsun Surface set diamondcorebit The surface set diamondbit is produced from a single layer of natural diamond setting on the surface of bit crown with hard matrix. Surface set diamondbit i ...Keyword : drill bit | diamond bit | core bit | surface set bit

Coring tool is used for acquisition of the rock core in petroleum drilling. One to three sections can be run every time , and it is suitable for core in soft, mid-hard , hard and tattered stratum . Keyword : core tools